Port Adelaide has bolstered its squad with Tredrea, Aaron Shattock, Toby Thurstans, Jacob Surjan and Brad Symes for Monday night's match against the Saints at AAMI Stadium. Adam Thomson (omitted) and Michael Wilson (hamstring) will miss.
Joining Koschitzke and Ball in the St Kilda squad of 25 are James Gwilt and Allan Murray. So far there's only one out for the Saints - Fraser Gehrig with a hamstring. Robert Harvey, who had also been under a cloud with a hamstring has been named on a half-forward flank.
Kennelly has been named as one of three inclusions to Sydney's squad for Sunday's match against the Demons at the SCG. Also added to the 22 which defeated Carlton in round three are Sean Dempster and Jarred Moore.
Matthew Bate is in contention to make his debut for Melbourne after being named as one of four inclusions. Paul Johnson, Simon Godfrey and Ben Holland are the others. Mark Jamar (plantar fascia strain) could not be considered for selection.
Peter Street and Farren Ray return for the Western Bulldogs' clash against Geelong at Telstra Dome on Saturday in place of Adam Morgan (knee) and Will Minson (leg).
The Geelong selectors opted to make four changes - two of them compulsory. Tim Callan, Tom Lonergan, Nathan Ablett and David Wojcinski are in for Steven King (hamstring), Mark Blake (omitted), Andrew Mackie (omitted) and Kent Kingsley who has re-injured his hamstring. Wojcinski will be playing his first senior match since rupturing an ACL in round two last season.
Carlton has made three changes for Friday night's clash with the Hawks at Telstra Dome. Setanta O'hAilpin and Jordan Russell come in for their second games along with Brad Fisher who strained a hamstring in the round one win over Melbourne. Brendan Fevola (suspended), Callum Chambers and Trent Sporn, both omitted, are the players to make way. Hawthorn has named an unchanged line-up.
There are four changes for the Brisbane Lions who host the Tigers at the Gabba on Saturday night. Coming in are Daniel Merrett, Clark Keating, Joel Macdonald and Jayden Attard in place of Justin Leppitsch (suspended), Mitch Clark, Scott Harding and Ash McGrath (omitted).
The Richmond selectors needed to find replacements for injured pair Darren Gaspar and Tom Roach, as well as Jeremy Humm who has been dropped after making his senior debut for the Tigers last week. They opted to bring in Andrew Krakouer, David Rodan and Adam Pattison. Nathan Brown, whom coach Terry Wallace hinted could dropped this week, has been named at full-forward.
The Fremantle selectors found no good reason to change the line-up that accounted for Port Adelaide last Sunday for Saturday night's home clash with the Crows. Adelaide has made just the one change drafting in Chris Knights for Hayden Skipworth.
The Kangaroos have added five new players - Jess Sinclair, Eddie Sansbury, Drew Petrie, Daniel Pratt and potential first-gamer Andrew Swallow - to their 25-man squad for Sunday's match against the Eagles at Manuka Oval in Canberra. Glenn Archer (hamstring) and Josh Gibson will miss.
West Coast has retained the line-up which defeated Richmond last week while adding Damien Adkins, Brett Jones and Travis Gaspar to its extended interchange bench.
